Shimano - Ultegra WH-6800 Clincher Tubeless Wheel Set (PAIR)
In the wake of the success of the 11 Speed Dura Ace 9000 group, this year Shimano revealed that the 11 Speed sensation was moving down the line to the more affordable Ultegra 6800 group. The new Ultegra 6800 wheelset is a tubeless-ready design and employs a wide flange hub and offset rim to ensure optimal stiffness and efficiency. Upgrades on the Ultegra 6800 Hubs go beyond the addition of an extra speed! In order to bring the Ultegra tubeless wheels up to date with the new 11 speed suit, the 6800 hubs have been updated with a new freehub that features a new cone digital adjustment system designed to diffuse quick release tension, reducing the load on the bearings to enable smoother spinning and increased durability. In place of the double lock system normally found on most cup and cone hubs is a ratcheting ring hidden under an end cap. To adjust it you simply remove the end cap with a 5mm allen, and rotate the ring to eliminate any play in the bearings. No more messing with cone spanners! Hubs weigh 10 grams less than previous version, allowing the wheelset to weigh in at 1,640 grams (claimed).
Wide flange hub
Cup and cone bearing system
Spoke count: Rear (20 straight pull), Front (16 straight pull)